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Zhang X, Liu J, Cheng Y, Chen K, Chen Y, Zhu H, Li Z, Liu S, Cao X. Metabolic enzyme Suclg2 maintains tolerogenicity of regulatory dendritic cells diffDCs by suppressing Lactb succinylation. J Autoimmun 2023; 138:103048. [PMID: 37216870 DOI: 10.1016/j.jaut.2023.103048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 04/11/2023] [Accepted: 04/18/2023] [Indexed: 05/24/2023]
Abstract
Metabolic reprogramming plays a pivotal role in the differentiation and function of immune cells including dendritic cells (DCs). Regulatory DCs can be generated in regional tissue niches like splenic stroma and act as an important part of stromal control of immune response for the maintenance of immune tolerance. However, the metabolic alterations during splenic stroma-driven regulatory DCs differentiation and the metabolic enzyme involved in regulatory DCs function remain poorly understood. By combining metabolomic, transcriptomic, and functional investigations of mature DCs (maDCs) and diffDCs (regulatory DCs differentiated from activated mature DCs through coculturing with splenic stroma), here we identified succinate-CoA ligase subunit beta Suclg2 as a key metabolic enzyme that reprograms the proinflammatory status of mature DCs into a tolerogenic phenotype via preventing NF-κB signaling activation. diffDCs downregulate succinic acid levels and increase the Suclg2 expression along with their differentiation from mature DCs. Suclg2-interference impaired the tolerogenic function of diffDCs in inducing T cell apoptosis and enhanced activation of NF-κB signaling and expression of inflammatory genes CD40, Ccl5, and Il12b in diffDCs. Furthermore, we identified Lactb as a new positive regulator of NF-κB signaling in diffDCs whose succinylation at the lysine 288 residue was inhibited by Suclg2. Our study reveals that the metabolic enzyme Suclg2 is required to maintain the immunoregulatory function of diffDCs, adding mechanistic insights into the metabolic regulation of DC-based immunity and tolerance.
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Affiliation(s)
- Xiaomin Zhang
- National Key Laboratory of Medical Immunology, Institute of Immunology, Second Military Medical University, Shanghai, 200433, China
| | - Juan Liu
- National Key Laboratory of Medical Immunology, Institute of Immunology, Second Military Medical University, Shanghai, 200433, China.
| | - Yujie Cheng
- National Key Laboratory of Medical Immunology, Institute of Immunology, Second Military Medical University, Shanghai, 200433, China
| | - Kun Chen
- Department of Immunology, Center for Immunotherapy, Institute of Basic Medical Sciences, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100005, China
| | - Yali Chen
- Department of Immunology, Center for Immunotherapy, Institute of Basic Medical Sciences, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100005, China
| | - Ha Zhu
- National Key Laboratory of Medical Immunology, Institute of Immunology, Second Military Medical University, Shanghai, 200433, China
| | - Zhiqing Li
- National Key Laboratory of Medical Immunology, Institute of Immunology, Second Military Medical University, Shanghai, 200433, China
| | - Shuxun Liu
- National Key Laboratory of Medical Immunology, Institute of Immunology, Second Military Medical University, Shanghai, 200433, China
| | - Xuetao Cao
- National Key Laboratory of Medical Immunology, Institute of Immunology, Second Military Medical University, Shanghai, 200433, China; Department of Immunology, Center for Immunotherapy, Institute of Basic Medical Sciences, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100005, China; Frontier Research Center for Cell Response, Institute of Immunology, College of Life Sciences, Nankai University, Tianjin, 300071, China.
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Yuda M, Aizawa S, Tsuboi I, Hirabayashi Y, Harada T, Hino H, Hirai S. Imbalanced M1 and M2 Macrophage Polarization in Bone Marrow Provokes Impairment of the Hematopoietic Microenvironment in a Mouse Model of Hemophagocytic Lymphohistiocytosis. Biol Pharm Bull 2022; 45:1602-1608. [DOI: 10.1248/bpb.b22-00108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Miyuki Yuda
- Division of Anatomical Science, Department of Functional Morphology, Nihon University School of Medicine
| | - Shin Aizawa
- Division of Anatomical Science, Department of Functional Morphology, Nihon University School of Medicine
| | - Isao Tsuboi
- Division of Anatomical Science, Department of Functional Morphology, Nihon University School of Medicine
| | - Yoko Hirabayashi
- Center for Biological Safety and Research, National Institute of Health Sciences
| | - Tomonori Harada
- Division of Anatomical Science, Department of Functional Morphology, Nihon University School of Medicine
| | - Hirotsugu Hino
- Division of Anatomical Science, Department of Functional Morphology, Nihon University School of Medicine
| | - Shuichi Hirai
- Division of Anatomical Science, Department of Functional Morphology, Nihon University School of Medicine
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Wiechers C, Pezoldt J, Beckstette M, Berner J, Schraml BU, Huehn J. Lymph node stromal cells support the maturation of pre‐DCs into cDC‐like cells via colony‐stimulating factor 1. Immunology 2022; 166:475-491. [DOI: 10.1111/imm.13497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 04/18/2022] [Indexed: 11/30/2022] Open
Affiliation(s)
- Carolin Wiechers
- Department Experimental Immunology Helmholtz Centre for Infection Research Braunschweig Germany
| | - Joern Pezoldt
- Department Experimental Immunology Helmholtz Centre for Infection Research Braunschweig Germany
- Laboratory of Systems Biology and Genetics, École Polytechnique Fédérale de Lausanne Lausanne Switzerland
| | - Michael Beckstette
- Department Experimental Immunology Helmholtz Centre for Infection Research Braunschweig Germany
- Department of Computational Biology for Individualised Medicine, Centre for Individualised Infection Medicine Helmholtz Centre for Infection Research and Hannover Medical School Hannover Germany
| | - Johanna Berner
- Institute for Cardiovascular Physiology and Pathophysiology, Biomedical Center, Faculty of Medicine, LMU Munich Planegg‐Martinsried Germany
- Walter‐Brendel‐Centre of Experimental Medicine University Hospital, LMU Munich Planegg‐Martinsried Germany
| | - Barbara U. Schraml
- Institute for Cardiovascular Physiology and Pathophysiology, Biomedical Center, Faculty of Medicine, LMU Munich Planegg‐Martinsried Germany
- Walter‐Brendel‐Centre of Experimental Medicine University Hospital, LMU Munich Planegg‐Martinsried Germany
| | - Jochen Huehn
- Department Experimental Immunology Helmholtz Centre for Infection Research Braunschweig Germany
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Christofi M, Le Sommer S, Mölzer C, Klaska IP, Kuffova L, Forrester JV. Low-dose 2-deoxy glucose stabilises tolerogenic dendritic cells and generates potent in vivo immunosuppressive effects. Cell Mol Life Sci 2020; 78:2857-2876. [PMID: 33074350 PMCID: PMC8004500 DOI: 10.1007/s00018-020-03672-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 09/04/2020] [Accepted: 10/05/2020] [Indexed: 01/17/2023]
Abstract
Cell therapies for autoimmune diseases using tolerogenic dendritic cells (tolDC) have been promisingly explored. A major stumbling block has been generating stable tolDC, with low risk of converting to mature immunogenic DC (mDC), exacerbating disease. mDC induction involves a metabolic shift to lactate production from oxidative phosphorylation (OXPHOS) and β-oxidation, the homeostatic energy source for resting DC. Inhibition of glycolysis through the administration of 2-deoxy glucose (2-DG) has been shown to prevent autoimmune disease experimentally but is not clinically feasible. We show here that treatment of mouse bone marrow-derived tolDC ex vivo with low-dose 2-DG (2.5 mM) (2-DGtolDC) induces a stable tolerogenic phenotype demonstrated by their failure to engage lactate production when challenged with mycobacterial antigen (Mtb). ~ 15% of 2-DGtolDC express low levels of MHC class II and 30% express CD86, while they are negative for CD40. 2-DGtolDC also express increased immune checkpoint molecules PDL-1 and SIRP-1α. Antigen-specific T cell proliferation is reduced in response to 2-DGtolDC in vitro. Mtb-stimulated 2-DGtolDC do not engage aerobic glycolysis but respond to challenge via increased OXPHOS. They also have decreased levels of p65 phosphorylation, with increased phosphorylation of the non-canonical p100 pathway. A stable tolDC phenotype is associated with sustained SIRP-1α phosphorylation and p85-AKT and PI3K signalling inhibition. Further, 2-DGtolDC preferentially secrete IL-10 rather than IL-12 upon Mtb-stimulation. Importantly, a single subcutaneous administration of 2-DGtolDC prevented experimental autoimmune uveoretinitis (EAU) in vivo. Inhibiting glycolysis of autologous tolDC prior to transfer may be a useful approach to providing stable tolDC therapy for autoimmune/immune-mediated diseases.
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Affiliation(s)
- M Christofi
- Institute of Medical Sciences, School of Medicine, Medical Sciences and Nutrition, Foresterhill, University of Aberdeen, Aberdeen, AB25 2ZD, Scotland, UK
| | - S Le Sommer
- Institute of Medical Sciences, School of Medicine, Medical Sciences and Nutrition, Foresterhill, University of Aberdeen, Aberdeen, AB25 2ZD, Scotland, UK
| | - C Mölzer
- Institute of Medical Sciences, School of Medicine, Medical Sciences and Nutrition, Foresterhill, University of Aberdeen, Aberdeen, AB25 2ZD, Scotland, UK.
| | - I P Klaska
- Institute of Medical Sciences, School of Medicine, Medical Sciences and Nutrition, Foresterhill, University of Aberdeen, Aberdeen, AB25 2ZD, Scotland, UK
| | - L Kuffova
- Institute of Medical Sciences, School of Medicine, Medical Sciences and Nutrition, Foresterhill, University of Aberdeen, Aberdeen, AB25 2ZD, Scotland, UK.,Eye Clinic, Aberdeen Royal Infirmary, Aberdeen, Scotland, UK
| | - J V Forrester
- Institute of Medical Sciences, School of Medicine, Medical Sciences and Nutrition, Foresterhill, University of Aberdeen, Aberdeen, AB25 2ZD, Scotland, UK. .,Ocular Immunology Program, Centre for Ophthalmology and Visual Science, The University of Western Australia, Perth, WA, Australia. .,Centre for Experimental Immunology, Lions Eye Institute, Nedlands, WA, Australia.
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O'Neill HC, Lim HK, Periasamy P, Kumarappan L, Tan JKH, O'Neill TJ. Transplanted spleen stromal cells with osteogenic potential support ectopic myelopoiesis. PLoS One 2019; 14:e0223416. [PMID: 31584977 PMCID: PMC6777786 DOI: 10.1371/journal.pone.0223416] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 09/20/2019] [Indexed: 12/24/2022] Open
Abstract
Spleen stromal lines which support in vitro hematopoiesis are investigated for their lineage origin and hematopoietic support function in vivo. Marker expression and gene profiling identify a lineage relationship with mesenchymal stem cells and perivascular reticular cells described recently in bone marrow. Stromal lines commonly express Cxcl12, Pdgfra and Pdgfr typical of bone marrow derived perivascular reticular cells but reflect a unique cell type in terms of other gene and marker expression. Their classification as osteoprogenitors is confirmed through ability to undergo osteogenic, but not adipogenic or chondrogenic differentiation. Some stromal lines were shown to form ectopic niches for HSCs following engraftment under the kidney capsule of NOD/SCID mice. The presence of myeloid cells and a higher representation of a specific dendritic-like cell type over other myeloid cells within grafts was consistent with previous in vitro evidence of hematopoietic support capacity. These studies reinforce the role of perivascular/perisinusoidal reticular cells in hematopoiesis and implicate such cells as niches for hematopoiesis in spleen.
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Affiliation(s)
- Helen C O'Neill
- Clem Jones Research Centre for Regenerative Medicine, Bond University, Gold Coast, Queensland, Australia
| | - Hong K Lim
- Clem Jones Research Centre for Regenerative Medicine, Bond University, Gold Coast, Queensland, Australia
| | - Pravin Periasamy
- Research School of Biology, Australian National University, Canberra, Australian Capital Territory, Australia.,Department of Microbiology, Yoo Long School of Medicine, National University of Singapore, Singapore, Singapore
| | - Lavanya Kumarappan
- Research School of Biology, Australian National University, Canberra, Australian Capital Territory, Australia
| | - Jonathan K H Tan
- Clem Jones Research Centre for Regenerative Medicine, Bond University, Gold Coast, Queensland, Australia
| | - Terence J O'Neill
- Big Data Centre, Bond Business School, Bond University, Gold Coast, Queensland, Australia
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Lim HK, O'Neill HC. Identification of Stromal Cells in Spleen Which Support Myelopoiesis. Front Cell Dev Biol 2019; 7:1. [PMID: 30733944 PMCID: PMC6354566 DOI: 10.3389/fcell.2019.00001] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 01/08/2019] [Indexed: 12/18/2022] Open
Abstract
Stromal cells in spleen organize tissue into red pulp, white pulp and marginal zone, and also interact with hematopoietic cells to regulate immune responses. This study has used phenotypic information of a previously described spleen stromal cell line called 5G3, which supports restricted hematopoiesis in vitro, to identify an equivalent stromal cell subset in vivo and to test its capacity to support hematopoiesis. Using stromal cell fractionation, phenotypic analysis, as well as cell growth and hematopoietic support assays, the Sca-1+gp38+Thy1.2+CD29+CD51+ fraction of spleen stroma has been identified as an equivalent stromal subset resembling the 5G3 cell counterpart. While heterogeneity may still exist within that subset, it has been shown to have superior hematopoietic support capacity compared with the 5G3 cell line, and all other spleen stromal cell fractions tested.
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Affiliation(s)
- Hong Kiat Lim
- Clem Jones Centre for Regenerative Medicine, Faculty of Health Sciences and Medicine, Bond University, Gold Coast, QLD, Australia.,Research School of Biology, Australian National University, Canberra, ACT, Australia
| | - Helen C O'Neill
- Clem Jones Centre for Regenerative Medicine, Faculty of Health Sciences and Medicine, Bond University, Gold Coast, QLD, Australia
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Periasamy P, Tran V, O’Neill HC. Identification of genes which regulate stroma-dependent in vitro hematopoiesis. PLoS One 2018; 13:e0205583. [PMID: 30308055 PMCID: PMC6181386 DOI: 10.1371/journal.pone.0205583] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 09/27/2018] [Indexed: 12/22/2022] Open
Abstract
Cultured splenic stroma has been shown to support in vitro hematopoiesis in overlaid bone marrow and spleen progenitors. These co-cultures support longterm production of a novel dendritic-like cell type along with transient production of myeloid cells. They also maintain a progenitor cell population. The splenic stromal lines 5G3 and 3B5 have been identified as a supporter and a non-supporter of hematopoiesis. Based on their gene expression profile, both 5G3 and 3B5 express genes related to hematopoiesis, while 5G3 cells express several unique genes, and show upregulation of some genes over 3B5. Based on gene expression studies, specific inhibitors were tested for capacity to inhibit hematopoiesis in co-cultures. Addition of specific antibodies and small molecule inhibitors identified VCAM1, CXCL12, CSF1 and SPP1 as potential regulators of hematopoiesis, although both are expressed by 5G3 and 3B5. Through inhibition of function, SVEP1 and ALDH1 are also shown here to be deterministic of 5G3 hematopoietic support capacity, since these are uniquely expressed by 5G3 and not 3B5. The achievement of inhibition is notable given the dynamic, longterm nature of co-cultures which involve only small numbers of cells. The alternate plan, to add recombinant soluble factors produced by 5G3 back into 3B5 co-cultures in order to recover in vitro hematopoiesis, proved ineffective. Out of 6 different factors added to 3B5, only IGF2 showed any effect on cell production. The identification of differentially expressed or upregulated genes in 5G3 has provided an insight into potential pathways involved in in vitro hematopoiesis leading to production of dendritic-like cells.
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Affiliation(s)
- Pravin Periasamy
- Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Vinson Tran
- Division of Biomedical Science, Research School of Biology, The Australian National University, Canberra, Australia
| | - Helen C. O’Neill
- Clem Jones Centre for Regenerative Medicine, Faculty of Health Sciences and Medicine, Bond University, Gold Coast, Queensland, Australia
- * E-mail:
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